audioOS 9.9.16.0 (build 20J373) is an official Apple over-the-air update for the HomePod, released on 2022-09-12T17:06:21Z. The update package is 1.38 GB. This is a delta (partial) update that requires 14.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1d5e3e0c7bb56605700eb9e2094ceab3b50b16c0.zip.